Corrosion Resistant AISI 316 Stainless Steel

Product Overview

AISI 316 is a premium molybdenum-bearing austenitic stainless steel renowned for its superior corrosion resistance—outperforming 304 stainless steel, especially in chloride-rich and acidic environments. Compliant with global standards such as ASTM A276/276M (USA), EN 10088-3 (Europe, designated as X5CrNiMo17-12-2 / 1.4401), JIS G4303 (Japan, JIS SUS316), and GB/T 1220 (China, 06Cr17Ni12Mo2), this steel is a versatile solution for harsh environments. It combines excellent mechanical properties, high-temperature strength, and good weldability, making it indispensable in marine, chemical, pharmaceutical, food processing, and aerospace industries. Whether used in seawater treatment systems or surgical instruments, AISI 316 delivers reliable performance in the most demanding conditions.

Product Features

Superior Corrosion Resistance

The addition of molybdenum (2% content) gives AISI 316 exceptional resistance to pitting, crevice corrosion, and general corrosion—even in saltwater, acidic solutions, and chemical environments.

Excellent Mechanical & High-Temperature Performance

With a minimum tensile strength of 520Mpa and yield strength of 205Mpa, AISI 316 offers robust mechanical properties. It maintains strength at elevated temperatures (up to 870℃), making it suitable for high-heat applications.

Versatile Weldability & Machinability

AISI 316 can be easily welded using standard methods, and its good machinability allows for precise shaping and finishing—reducing production complexity and costs.

Globally Recognized Equivalents

Cross-standard compatibility (X5CrNiMo17-12-2/1.4401, JIS SUS316, 06Cr17Ni12Mo2) ensures seamless integration into international supply chains and manufacturing projects.

1: Steel equivalent

Country	USA	EN	China	Japan	Russia
Standard	ASTM A276/276M	EN10088-3	GB/T1220	JIS G4303	GOST 5632-76
Grade	316	X5CrNiMo17-12-2/1.4401	06Cr17Ni12Mo2	SUS316	03X17H14M3

2: Chemical composition

Grade	C	Si	Mn	P	S	Cr	Ni	N
316	0.08Max	1.0Max	2.0Max	0.045Max	0.03Max	16-18	10-14	/
X5CrNiMo17-12-2/1.4401	0.07Max	1.0Max	2.0Max	0.045Max	0.03Max	16.5-18.5	10-13	0.11Max
06Cr17Ni12Mo2	0.08Max	1.0Max	2.0Max	0.045Max	0.03Max	16-18	10-14	/
SUS316	0.08Max	1.0Max	2.0Max	0.045Max	0.03Max	16-18	10-14	/
03X17H14M3	0.03Max	0.4Max	1.0-2.0	0.030Max	0.02Max	16.8-18.3	13.5-15	/

3: Mechanical properties

Mechanical properties for 06Cr17Ni12Mo2/0Cr17Ni12Mo2 from standard GB/T1220 and SUS316 from JIS G4303.

Grade	Tensile strength	Yield strength	Alongation	Area of reduction	Hardness
06Cr17Ni12Mo2	520Mpa Min	205Mpa Min	40% Min	60% Min	HBW187Max
SUS316	520Mpa Min	205Mpa Min	40% Min	60% Min	HBW187Max

Mechanical properties for X5CrNiMo17-12-2/1.4401 from standard EN10088-3

Steel grade	Size range	Tensile strength	Yield strength	Alongation		Impact value at RT/J		Hardness /HBW
				L	Tr	L	Tr
X5CrNiMo17-12-2/1.4401	d≤160	500-700Mpa	200Mpa Min	40% Min	/	100J Min	/	215Max
	160＜d≤250	500-700Mpa	200Mpa Min	/	30% Min	/	60J Min	215Max

Mechanical properties at room temperature of steels in the COLD-WORKED condition from standard EN10088-3

Steel grade	Tensile strength level	0.2% proof strength	Tensile strength/Rm	Elongation
X5CrNiMo17-12-2 /1.4401	C700	350Mpa Min	700-850Mpa	20% Min
	C800	500Mpa Min	800-1000Mpa	12% Min

Minimum values for the 0.2% and 1% proof strength of austenitic steels at elevated temperatures according to standard EN10088-3

Steel garde	HT condition	Minimum 0.2% proof strength at a temperature of:
		100℃	150℃	200℃	250℃	300℃	350℃	400℃	450℃	500℃	550℃
X5CrNiMo17-12-2 /1.4401	AT	Mpa  or  N/mm2
		175	158	145	135	127	120	115	112	110	108
		Minimum 1% proof strength at a temperature of:
		100℃	150℃	200℃	250℃	300℃	350℃	400℃	450℃	500℃	550℃
		Mpa  or  N/mm2
		210	190	175	165	155	150	145	141	139	137

AT = Solution annealed

4: Supply size & Tolerance & Stock size

Product type	Size range	Length
Hot rolled bar	Φ10-Φ130mm	5000-7000mm
Hot forged bar	Φ140-Φ600mm	2000-5800mm
Hot rolled plate/sheet	T:2-60mm; W:310-810mm	6000-12000mm
Hot forged plate	T:70-250mm; W:310-810mm	2000-5800mm
Hot Forged block	T: 260-500mm; W: 300-1000mm	2000-5800mm

Surface Finish	Turned	Milled	Grinding(Best)	Polished(Best)	Peeled(Best)	Black Forged	Black Rolled
Tolerance	+0/+3mm	+0/+3mm	+0/+0.05mm	+0/+0.05mm	+0/+0.1mm	+0/+5mm	+0/+1mm
Straighness	1mm/1000mm max.					3mm/1000mm max.

Qilu steel stock hot rolled bar and forged bars more than ten thousands tons every month, below our our stock size.

1): Stock diameter for hot rolled bar

10	12	15	18	20	22	25	28	30	32	35	38	40	45	50
55	60	65	70	75	80	85	90	95	100	105	110	120	130	140
150	160	170	180	190

2) : Stock diameter for hot forged bar

200	210	220	230	240	250	260	270	280	290
300	310	320	330	340	350	360	370	380	390
400

Since the stocks change everyday, if you want to know our stock available information, please contact our salesman.

5: Ultrasonic Test

EN10228-3 class III or Sep 1921-84 D/D

6：Steel making & Forging processing

1): Steel making process:

  EF+LF+VD

  EAF+LF+VD

  EF+LF+VD+ESR

  EAF+LF+VD+ESR

2): Forging processing:

Hot forging temperature: 900-1200℃

Cooling in the air

7: Heat treatment  

1）: Solution annealing

Heat 316 steel to 1010-1150℃ in the furnace

Quick cool in the air/water

2):  Aging

Heat to 850-930℃

Application Scenarios

Chemical & Petroleum Industry

Corrosion-Resistant Equipment: Reactors, heat exchangers, pipelines, valves, and pumps for handling chemicals and hydrocarbons.

Marine Environment: Offshore oil platform equipment and seawater treatment systems.

Food & Pharmaceutical Industry

Sanitary Equipment: Food processing machinery (fermentation tanks, conveying pipelines) and pharmaceutical production tools.

Medical Devices: Surgical instruments and orthopedic implants (e.g., screws) due to biocompatibility and corrosion resistance.

Energy & Environmental Protection

Nuclear Power Equipment: Auxiliary components for nuclear fuel assemblies.

Desulfurization Systems: Flue gas desulfurization (FGD) equipment for power plants.

Construction & Marine Engineering

Coastal Construction: Bridges, railings, and curtain walls in coastal areas prone to saltwater exposure.

Seawater Desalination: Reverse osmosis membrane components and high-pressure piping.

Other Applications

Daily Life & Luxury Goods: High-quality kitchenware, tableware, jewelry, and watches.

Aerospace: Fuel lines and hydraulic system components for aircraft.

Automotive Industry: Exhaust systems and sensors requiring corrosion resistance.

FAQ

What are the equivalent grades of AISI 316?

AISI 316 equivalents include X5CrNiMo17-12-2/1.4401 (Europe), JIS SUS316 (Japan), 06Cr17Ni12Mo2 (China), and 03X17H14M3 (Russia).

What are the mechanical properties of AISI 316?

Minimum tensile strength is 520Mpa, yield strength 205Mpa, elongation 40%, and maximum hardness HBW187 (for 06Cr17Ni12Mo2 and JIS SUS316).

What supply sizes are available for AISI 316?

Options include hot rolled bars (Φ10-Φ130mm, length 5000-7000mm), hot forged bars (Φ140-Φ600mm), hot rolled plates (T:2-60mm; W:310-810mm, length 6000-12000mm), hot forged plates (T:70-250mm), and hot forged blocks (T:260-500mm), with lengths of 2000-5800mm for forged products.

Where is AISI 316 most commonly used?

AISI 316 is widely used in chemical/petroleum, food/pharmaceutical, marine, energy, construction, aerospace, and automotive industries—especially in corrosive or harsh environments.